311052249478 has 4 divisors (see below), whose sum is σ = 466578374220. Its totient is φ = 155526124738.

The previous prime is 311052249463. The next prime is 311052249493. The reversal of 311052249478 is 874942250113.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (311052249463) and next prime (311052249493).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77763062368 + ... + 77763062371.

It is an arithmetic number, because the mean of its divisors is an integer number (116644593555).

Almost surely, 2^311052249478 is an apocalyptic number.

311052249478 is a deficient number, since it is larger than the sum of its proper divisors (155526124742).

311052249478 is a wasteful number, since it uses less digits than its factorization.

311052249478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155526124741.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 311052249478 in words is "three hundred eleven billion, fifty-two million, two hundred forty-nine thousand, four hundred seventy-eight".